Manage access to secrets

This page describes how to manage access to a secret, including the secret material. To learn more about access controls and permissions, see Access control with IAM.

Important: To use Secret Manager with workloads running on Compute Engine or Google Kubernetes Engine, the underlying instance or node must have the cloud-platform OAuth scope. See accessing the Secret Manager API for more information.

Required roles

To get the permissions that you need to manage access to secrets, ask your administrator to grant you the Secret Manager Admin (roles/secretmanager.admin) IAM role on the secret, project, folder, or organization. For more information about granting roles, see Manage access to projects, folders, and organizations.

You might also be able to get the required permissions through custom roles or other predefined roles.

Grant access

To grant access to a secret, use one of the following methods:

Console

In the Google Cloud console, go to the Secret Manager page.

Go to Secret Manager
To select a secret, click the checkbox next to the name of the secret on the Secret Manager page.
If it is not already open, click Show Info Panel to open the panel.
In the info panel, click Add Principal.
In the New principals field, enter the email address(es) of the members to add.
In the Select a role list, choose Secret Manager, and then select Secret Manager Secret Accessor.

gcloud

Before using any of the command data below, make the following replacements:

SECRET_ID: the ID of the secret or fully qualified identifier for the secret
MEMBER: the IAM member, such as a user, group, or service account

Execute the following command:

Linux, macOS, or Cloud Shell

gcloud secrets add-iam-policy-binding SECRET_ID \
    --member="MEMBER" \
    --role="roles/secretmanager.secretAccessor"

Windows (PowerShell)

gcloud secrets add-iam-policy-binding SECRET_ID `
    --member="MEMBER" `
    --role="roles/secretmanager.secretAccessor"

Windows (cmd.exe)

gcloud secrets add-iam-policy-binding SECRET_ID ^
    --member="MEMBER" ^
    --role="roles/secretmanager.secretAccessor"

REST

Note: Unlike the other examples, this replaces the entire IAM policy.

Before using any of the request data, make the following replacements:

PROJECT_ID: the Google Cloud project that contains the secret
SECRET_ID: the ID of the secret or fully qualified identifier for the secret
MEMBER: the IAM member, such as a user, group, or service account

HTTP method and URL:

POST https://secretmanager.googleapis.com/v1/projects/PROJECT_ID/secrets/SECRET_ID:setIamPolicy

Request JSON body:

{"policy": {"bindings": [{"members": ["MEMBER"], "role": "roles/secretmanager.secretAccessor"}]}}

To send your request, choose one of these options:

curl

Note: The following command assumes that you have logged in to the gcloud CLI with your user account by running gcloud init or gcloud auth login , or by using Cloud Shell, which automatically logs you into the gcloud CLI . You can check the currently active account by running gcloud auth list.

Save the request body in a file named request.json, and execute the following command:

curl -X POST \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     -H "Content-Type: application/json; charset=utf-8" \
     -d @request.json \
     "https://secretmanager.googleapis.com/v1/projects/PROJECT_ID/secrets/SECRET_ID:setIamPolicy"

PowerShell

Note: The following command assumes that you have logged in to the gcloud CLI with your user account by running gcloud init or gcloud auth login . You can check the currently active account by running gcloud auth list.

Save the request body in a file named request.json, and execute the following command:

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method POST `
    -Headers $headers `
    -ContentType: "application/json; charset=utf-8" `
    -InFile request.json `
    -Uri "https://secretmanager.googleapis.com/v1/projects/PROJECT_ID/secrets/SECRET_ID:setIamPolicy" | Select-Object -Expand Content

You should receive a JSON response similar to the following:

{
  "version": 1,
  "etag": "BwYhOrAmWFQ=",
  "bindings": [
    {
      "role": "roles/secretmanager.secretAccessor",
      "members": [
        "user:username@google.com"
      ]
    }
  ]
}

C#

To run this code, first set up a C# development environment and install the Secret Manager C# SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.


using Google.Cloud.SecretManager.V1;
using Google.Cloud.Iam.V1;

public class IamGrantAccessSample
{
    public Policy IamGrantAccess(
      string projectId = "my-project", string secretId = "my-secret",
      string member = "user:foo@example.com")
    {
        // Create the client.
        SecretManagerServiceClient client = SecretManagerServiceClient.Create();

        // Build the resource name.
        SecretName secretName = new SecretName(projectId, secretId);

        // Get current policy.
        Policy policy = client.GetIamPolicy(new GetIamPolicyRequest
        {
            ResourceAsResourceName = secretName,
        });

        // Add the user to the list of bindings.
        policy.AddRoleMember("roles/secretmanager.secretAccessor", member);

        // Save the updated policy.
        policy = client.SetIamPolicy(new SetIamPolicyRequest
        {
            ResourceAsResourceName = secretName,
            Policy = policy,
        });
        return policy;
    }
}

Go

To run this code, first set up a Go development environment and install the Secret Manager Go SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.

import (
	"context"
	"fmt"
	"io"

	secretmanager "cloud.google.com/go/secretmanager/apiv1"
)

// iamGrantAccess grants the given member access to the secret.
func iamGrantAccess(w io.Writer, name, member string) error {
	// name := "projects/my-project/secrets/my-secret"
	// member := "user:foo@example.com"

	// Create the client.
	ctx := context.Background()
	client, err := secretmanager.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("failed to create secretmanager client: %w", err)
	}
	defer client.Close()

	// Get the current IAM policy.
	handle := client.IAM(name)
	policy, err := handle.Policy(ctx)
	if err != nil {
		return fmt.Errorf("failed to get policy: %w", err)
	}

	// Grant the member access permissions.
	policy.Add(member, "roles/secretmanager.secretAccessor")
	if err = handle.SetPolicy(ctx, policy); err != nil {
		return fmt.Errorf("failed to save policy: %w", err)
	}

	fmt.Fprintf(w, "Updated IAM policy for %s\n", name)
	return nil
}

Java

To run this code, first set up a Java development environment and install the Secret Manager Java SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.

import com.google.cloud.secretmanager.v1.SecretManagerServiceClient;
import com.google.cloud.secretmanager.v1.SecretName;
import com.google.iam.v1.Binding;
import com.google.iam.v1.GetIamPolicyRequest;
import com.google.iam.v1.Policy;
import com.google.iam.v1.SetIamPolicyRequest;
import java.io.IOException;

public class IamGrantAccess {

  public static void iamGrantAccess() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "your-project-id";
    String secretId = "your-secret-id";
    String member = "user:foo@example.com";
    iamGrantAccess(projectId, secretId, member);
  }

  // Grant a member access to a particular secret.
  public static void iamGrantAccess(String projectId, String secretId, String member)
      throws IOException {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the "close" method on the client to safely clean up any remaining background resources.
    try (SecretManagerServiceClient client = SecretManagerServiceClient.create()) {
      // Build the name from the version.
      SecretName secretName = SecretName.of(projectId, secretId);

      // Request the current IAM policy.
      Policy currentPolicy =
          client.getIamPolicy(
              GetIamPolicyRequest.newBuilder().setResource(secretName.toString()).build());

      // Build the new binding.
      Binding binding =
          Binding.newBuilder()
              .setRole("roles/secretmanager.secretAccessor")
              .addMembers(member)
              .build();

      // Create a new IAM policy from the current policy, adding the binding.
      Policy newPolicy = Policy.newBuilder().mergeFrom(currentPolicy).addBindings(binding).build();

      // Save the updated IAM policy.
      client.setIamPolicy(
          SetIamPolicyRequest.newBuilder()
              .setResource(secretName.toString())
              .setPolicy(newPolicy)
              .build());

      System.out.printf("Updated IAM policy for %s\n", secretId);
    }
  }
}

Node.js

To run this code, first set up a Node.js development environment and install the Secret Manager Node.js SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// const name = 'projects/my-project/secrets/my-secret';
// const member = 'user:you@example.com';
//
// NOTE: Each member must be prefixed with its type. See the IAM documentation
// for more information: https://cloud.google.com/iam/docs/overview.

// Imports the Secret Manager library
const {SecretManagerServiceClient} = require('@google-cloud/secret-manager');

// Instantiates a client
const client = new SecretManagerServiceClient();

async function grantAccess() {
  // Get the current IAM policy.
  const [policy] = await client.getIamPolicy({
    resource: name,
  });

  // Add the user with accessor permissions to the bindings list.
  policy.bindings.push({
    role: 'roles/secretmanager.secretAccessor',
    members: [member],
  });

  // Save the updated IAM policy.
  await client.setIamPolicy({
    resource: name,
    policy: policy,
  });

  console.log(`Updated IAM policy for ${name}`);
}

grantAccess();

PHP

To run this code, first learn about using PHP on Google Cloud and install the Secret Manager PHP SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.

// Import the Secret Manager client library.
use Google\Cloud\SecretManager\V1\Client\SecretManagerServiceClient;

// Import the Secret Manager IAM library.
use Google\Cloud\Iam\V1\Binding;
use Google\Cloud\Iam\V1\GetIamPolicyRequest;
use Google\Cloud\Iam\V1\SetIamPolicyRequest;

/**
 * @param string $projectId Your Google Cloud Project ID (e.g. 'my-project')
 * @param string $secretId  Your secret ID (e.g. 'my-secret')
 * @param string $member Your member (e.g. 'user:foo@example.com')
 */
function iam_grant_access(string $projectId, string $secretId, string $member): void
{
    // Create the Secret Manager client.
    $client = new SecretManagerServiceClient();

    // Build the resource name of the secret.
    $name = $client->secretName($projectId, $secretId);

    // Get the current IAM policy.
    $policy = $client->getIamPolicy((new GetIamPolicyRequest)->setResource($name));

    // Update the bindings to include the new member.
    $bindings = $policy->getBindings();
    $bindings[] = new Binding([
        'members' => [$member],
        'role' => 'roles/secretmanager.secretAccessor',
    ]);
    $policy->setBindings($bindings);

    // Build the request.
    $request = (new SetIamPolicyRequest)
        ->setResource($name)
        ->setPolicy($policy);

    // Save the updated policy to the server.
    $client->setIamPolicy($request);

    // Print out a success message.
    printf('Updated IAM policy for %s', $secretId);
}

Python

To run this code, first set up a Python development environment and install the Secret Manager Python SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.

def iam_grant_access(
    project_id: str, secret_id: str, member: str
) -> iam_policy_pb2.SetIamPolicyRequest:
    """
    Grant the given member access to a secret.
    """

    # Import the Secret Manager client library.
    from google.cloud import secretmanager

    # Create the Secret Manager client.
    client = secretmanager.SecretManagerServiceClient()

    # Build the resource name of the secret.
    name = client.secret_path(project_id, secret_id)

    # Get the current IAM policy.
    policy = client.get_iam_policy(request={"resource": name})

    # Add the given member with access permissions.
    policy.bindings.add(role="roles/secretmanager.secretAccessor", members=[member])

    # Update the IAM Policy.
    new_policy = client.set_iam_policy(request={"resource": name, "policy": policy})

    # Print data about the secret.
    print(f"Updated IAM policy on {secret_id}")

Ruby

To run this code, first set up a Ruby development environment and install the Secret Manager Ruby SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.

# project_id = "YOUR-GOOGLE-CLOUD-PROJECT"  # (e.g. "my-project")
# secret_id  = "YOUR-SECRET-ID"             # (e.g. "my-secret")
# member     = "USER-OR-ACCOUNT"            # (e.g. "user:foo@example.com")

# Require the Secret Manager client library.
require "google/cloud/secret_manager"

# Create a Secret Manager client.
client = Google::Cloud::SecretManager.secret_manager_service

# Build the resource name of the secret.
name = client.secret_path project: project_id, secret: secret_id

# Get the current IAM policy.
policy = client.get_iam_policy resource: name

# Add new member to current bindings
policy.bindings << Google::Iam::V1::Binding.new(
  members: [member],
  role:    "roles/secretmanager.secretAccessor"
)

# Update IAM policy
new_policy = client.set_iam_policy resource: name, policy: policy

# Print a success message.
puts "Updated IAM policy for #{secret_id}"

Python

To run this code, first set up a Python development environment and install the Secret Manager Python SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.

# Import the Secret Manager client library.
from google import iam
from google.cloud import secretmanager_v1


def iam_grant_access_with_regional_secret(
    project_id: str,
    location_id: str,
    secret_id: str,
    member: str,
) -> iam.v1.iam_policy_pb2.SetIamPolicyRequest:
    """
    Grants the given member access to a secret.
    """

    # Endpoint to call the regional secret manager sever.
    api_endpoint = f"secretmanager.{location_id}.rep.googleapis.com"

    # Create the Secret Manager client.
    client = secretmanager_v1.SecretManagerServiceClient(
        client_options={"api_endpoint": api_endpoint},
    )

    # Build the resource name of the secret.
    name = f"projects/{project_id}/locations/{location_id}/secrets/{secret_id}"

    # Get the current IAM policy.
    policy = client.get_iam_policy(request={"resource": name})

    # Add the given member with access permissions.
    policy.bindings.add(role="roles/secretmanager.secretAccessor", members=[member])

    # Update the IAM Policy.
    new_policy = client.set_iam_policy(request={"resource": name, "policy": policy})

    # Print data about the secret.
    print(f"Updated IAM policy on {secret_id}")

    return new_policy

Revoke access

To revoke access from a secret, use one of the following methods:

Console

In the Google Cloud console, go to the Secret Manager page.

Go to Secret Manager
To select a secret, click the checkbox next to the name of the secret on the Secret Manager page.
If it is not already open, click Show Info Panel to open the panel.
In the info panel, click the expander arrow next to the user role to see a list of the users or service accounts with access to that role.
To remove the user or service account, click Delete next to service account or user ID.
In the confirmation dialog that appears, click Remove.

gcloud

Before using any of the command data below, make the following replacements:

SECRET_ID: the ID of the secret or fully qualified identifier for the secret
MEMBER: the IAM member, such as a user, group, or service account

Execute the following command:

Linux, macOS, or Cloud Shell

gcloud secrets remove-iam-policy-binding SECRET_ID \
    --member="MEMBER" \
    --role="roles/secretmanager.secretAccessor"

Windows (PowerShell)

gcloud secrets remove-iam-policy-binding SECRET_ID `
    --member="MEMBER" `
    --role="roles/secretmanager.secretAccessor"

Windows (cmd.exe)

gcloud secrets remove-iam-policy-binding SECRET_ID ^
    --member="MEMBER" ^
    --role="roles/secretmanager.secretAccessor"

REST

Note: Unlike the other examples, this replaces the entire IAM policy.

Before using any of the request data, make the following replacements:

PROJECT_ID: the Google Cloud project ID
SECRET_ID: the ID of the secret or fully qualified identifier for the secret

HTTP method and URL:

POST https://secretmanager.googleapis.com/v1/projects/PROJECT_ID/secrets/SECRET_ID:setIamPolicy

Request JSON body:

{"policy": {"bindings": []}}

To send your request, choose one of these options:

curl

Save the request body in a file named request.json, and execute the following command:

curl -X POST \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     -H "Content-Type: application/json; charset=utf-8" \
     -d @request.json \
     "https://secretmanager.googleapis.com/v1/projects/PROJECT_ID/secrets/SECRET_ID:setIamPolicy"

PowerShell

Save the request body in a file named request.json, and execute the following command:

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method POST `
    -Headers $headers `
    -ContentType: "application/json; charset=utf-8" `
    -InFile request.json `
    -Uri "https://secretmanager.googleapis.com/v1/projects/PROJECT_ID/secrets/SECRET_ID:setIamPolicy" | Select-Object -Expand Content

You should receive a JSON response similar to the following:

{
  "version": 1,
  "etag": "BwYhOtzsOBk="
}

C#

To run this code, first set up a C# development environment and install the Secret Manager C# SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.


using Google.Cloud.SecretManager.V1;
using Google.Cloud.Iam.V1;

public class IamRevokeAccessSample
{
    public Policy IamRevokeAccess(
      string projectId = "my-project", string secretId = "my-secret",
      string member = "user:foo@example.com")
    {
        // Create the client.
        SecretManagerServiceClient client = SecretManagerServiceClient.Create();

        // Build the resource name.
        SecretName secretName = new SecretName(projectId, secretId);

        // Get current policy.
        Policy policy = client.GetIamPolicy(new GetIamPolicyRequest
        {
            ResourceAsResourceName = secretName,
        });

        // Remove the user to the list of bindings.
        policy.RemoveRoleMember("roles/secretmanager.secretAccessor", member);

        // Save the updated policy.
        policy = client.SetIamPolicy(new SetIamPolicyRequest
        {
            ResourceAsResourceName = secretName,
            Policy = policy,
        });
        return policy;
    }
}

Go

To run this code, first set up a Go development environment and install the Secret Manager Go SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.

import (
	"context"
	"fmt"
	"io"

	secretmanager "cloud.google.com/go/secretmanager/apiv1"
)

// iamRevokeAccess revokes the given member's access on the secret.
func iamRevokeAccess(w io.Writer, name, member string) error {
	// name := "projects/my-project/secrets/my-secret"
	// member := "user:foo@example.com"

	// Create the client.
	ctx := context.Background()
	client, err := secretmanager.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("failed to create secretmanager client: %w", err)
	}
	defer client.Close()

	// Get the current IAM policy.
	handle := client.IAM(name)
	policy, err := handle.Policy(ctx)
	if err != nil {
		return fmt.Errorf("failed to get policy: %w", err)
	}

	// Grant the member access permissions.
	policy.Remove(member, "roles/secretmanager.secretAccessor")
	if err = handle.SetPolicy(ctx, policy); err != nil {
		return fmt.Errorf("failed to save policy: %w", err)
	}

	fmt.Fprintf(w, "Updated IAM policy for %s\n", name)
	return nil
}

Java

To run this code, first set up a Java development environment and install the Secret Manager Java SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.

import com.google.cloud.secretmanager.v1.SecretManagerServiceClient;
import com.google.cloud.secretmanager.v1.SecretName;
import com.google.iam.v1.Binding;
import com.google.iam.v1.GetIamPolicyRequest;
import com.google.iam.v1.Policy;
import com.google.iam.v1.SetIamPolicyRequest;
import java.io.IOException;

public class IamRevokeAccess {

  public static void iamRevokeAccess() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "your-project-id";
    String secretId = "your-secret-id";
    String member = "user:foo@example.com";
    iamRevokeAccess(projectId, secretId, member);
  }

  // Revoke a member access to a particular secret.
  public static void iamRevokeAccess(String projectId, String secretId, String member)
      throws IOException {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the "close" method on the client to safely clean up any remaining background resources.
    try (SecretManagerServiceClient client = SecretManagerServiceClient.create()) {
      // Build the name from the version.
      SecretName secretName = SecretName.of(projectId, secretId);

      // Request the current IAM policy.
      Policy policy =
          client.getIamPolicy(
              GetIamPolicyRequest.newBuilder().setResource(secretName.toString()).build());

      // Search through bindings and remove matches.
      String roleToFind = "roles/secretmanager.secretAccessor";
      for (Binding binding : policy.getBindingsList()) {
        if (binding.getRole() == roleToFind && binding.getMembersList().contains(member)) {
          binding.getMembersList().remove(member);
        }
      }

      // Save the updated IAM policy.
      client.setIamPolicy(
          SetIamPolicyRequest.newBuilder()
              .setResource(secretName.toString())
              .setPolicy(policy)
              .build());

      System.out.printf("Updated IAM policy for %s\n", secretId);
    }
  }
}

Node.js

To run this code, first set up a Node.js development environment and install the Secret Manager Node.js SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// const name = 'projects/my-project/secrets/my-secret';
// const member = 'user:you@example.com';
//
// NOTE: Each member must be prefixed with its type. See the IAM documentation
// for more information: https://cloud.google.com/iam/docs/overview.

// Imports the Secret Manager library
const {SecretManagerServiceClient} = require('@google-cloud/secret-manager');

// Instantiates a client
const client = new SecretManagerServiceClient();

async function grantAccess() {
  // Get the current IAM policy.
  const [policy] = await client.getIamPolicy({
    resource: name,
  });

  // Build a new list of policy bindings with the user excluded.
  for (const i in policy.bindings) {
    const binding = policy.bindings[i];
    if (binding.role !== 'roles/secretmanager.secretAccessor') {
      continue;
    }

    const idx = binding.members.indexOf(member);
    if (idx !== -1) {
      binding.members.splice(idx, 1);
    }
  }

  // Save the updated IAM policy.
  await client.setIamPolicy({
    resource: name,
    policy: policy,
  });

  console.log(`Updated IAM policy for ${name}`);
}

grantAccess();

PHP

To run this code, first learn about using PHP on Google Cloud and install the Secret Manager PHP SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.

// Import the Secret Manager client library.
use Google\Cloud\SecretManager\V1\Client\SecretManagerServiceClient;
use Google\Cloud\Iam\V1\GetIamPolicyRequest;
use Google\Cloud\Iam\V1\SetIamPolicyRequest;

/**
 * @param string $projectId Your Google Cloud Project ID (e.g. 'my-project')
 * @param string $secretId  Your secret ID (e.g. 'my-secret')
 * @param string $member Your member (e.g. 'user:foo@example.com')
 */
function iam_revoke_access(string $projectId, string $secretId, string $member): void
{
    // Create the Secret Manager client.
    $client = new SecretManagerServiceClient();

    // Build the resource name of the secret.
    $name = $client->secretName($projectId, $secretId);

    // Get the current IAM policy.
    $policy = $client->getIamPolicy((new GetIamPolicyRequest)->setResource($name));

    // Remove the member from the list of bindings.
    foreach ($policy->getBindings() as $binding) {
        if ($binding->getRole() == 'roles/secretmanager.secretAccessor') {
            $members = $binding->getMembers();
            foreach ($members as $i => $existingMember) {
                if ($member == $existingMember) {
                    unset($members[$i]);
                    $binding->setMembers($members);
                    break;
                }
            }
        }
    }

    // Build the request.
    $request = (new SetIamPolicyRequest)
        ->setResource($name)
        ->setPolicy($policy);

    // Save the updated policy to the server.
    $client->setIamPolicy($request);

    // Print out a success message.
    printf('Updated IAM policy for %s', $secretId);
}

Python

To run this code, first set up a Python development environment and install the Secret Manager Python SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.

def iam_revoke_access(
    project_id: str, secret_id: str, member: str
) -> iam_policy_pb2.SetIamPolicyRequest:
    """
    Revoke the given member access to a secret.
    """

    # Import the Secret Manager client library.
    from google.cloud import secretmanager

    # Create the Secret Manager client.
    client = secretmanager.SecretManagerServiceClient()

    # Build the resource name of the secret.
    name = client.secret_path(project_id, secret_id)

    # Get the current IAM policy.
    policy = client.get_iam_policy(request={"resource": name})

    # Remove the given member's access permissions.
    accessRole = "roles/secretmanager.secretAccessor"
    for b in list(policy.bindings):
        if b.role == accessRole and member in b.members:
            b.members.remove(member)

    # Update the IAM Policy.
    new_policy = client.set_iam_policy(request={"resource": name, "policy": policy})

    # Print data about the secret.
    print(f"Updated IAM policy on {secret_id}")

Ruby

To run this code, first set up a Ruby development environment and install the Secret Manager Ruby SDK. On Compute Engine or GKE, you must authenticate with the cloud-platform scope.

# project_id = "YOUR-GOOGLE-CLOUD-PROJECT"  # (e.g. "my-project")
# secret_id  = "YOUR-SECRET-ID"             # (e.g. "my-secret")
# member     = "USER-OR-ACCOUNT"            # (e.g. "user:foo@example.com")

# Require the Secret Manager client library.
require "google/cloud/secret_manager"

# Create a Secret Manager client.
client = Google::Cloud::SecretManager.secret_manager_service

# Build the resource name of the secret.
name = client.secret_path project: project_id, secret: secret_id

# Get the current IAM policy.
policy = client.get_iam_policy resource: name

# Remove the member from the current bindings
policy.bindings.each do |bind|
  if bind.role == "roles/secretmanager.secretAccessor"
    bind.members.delete member
  end
end

# Update IAM policy
new_policy = client.set_iam_policy resource: name, policy: policy

# Print a success message.
puts "Updated IAM policy for #{secret_id}"

What's next

Learn how to set an expiration date for a secret.
Learn how to set up rotation schedules for secrets.
Learn how to set up notifications on a secret.